This simulation treats the target as a single region. Charged tracks are forced to take short steps. Energy is assigned to individual triangles in AUSGTG.
This simulation treats the target as a single region. Charged tracks are forced to take short steps. Energy is assigned to individual triangles in AUSGTG1. Each B4 plane is also a single region. For other simplifications, see the comments at the beginning of geomtg1.cdf. See also a schematic sketch of the subsystem in $UMC_ROOT/v5/tt_quick.ps.
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